Move typing imports and some definitions behind guard

astroid/arguments.py

@@ -4,13 +4,17 @@
 
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+
 from astroid import nodes
 from astroid.bases import Instance
 from astroid.context import CallContext, InferenceContext
 from astroid.exceptions import InferenceError, NoDefault
-from astroid.typing import InferenceResult
 from astroid.util import Uninferable, UninferableBase, safe_infer
 
+if TYPE_CHECKING:
+    from astroid.typing import InferenceResult
+
 
 class CallSite:
     """Class for understanding arguments passed into a call site.

astroid/bases.py

@@ -9,8 +9,7 @@
 
 import collections
 import collections.abc
-from collections.abc import Iterable, Iterator
-from typing import TYPE_CHECKING, Any, Literal
+from typing import TYPE_CHECKING
 
 from astroid import decorators, nodes
 from astroid.const import PY310_PLUS
@@ -27,15 +26,18 @@
     NameInferenceError,
 )
 from astroid.interpreter import objectmodel
-from astroid.typing import (
-    InferenceErrorInfo,
-    InferenceResult,
-    SuccessfulInferenceResult,
-)
 from astroid.util import Uninferable, UninferableBase, safe_infer
 
 if TYPE_CHECKING:
+    from collections.abc import Iterable, Iterator
+    from typing import Any, Literal
+
     from astroid.constraint import Constraint
+    from astroid.typing import (
+        InferenceErrorInfo,
+        InferenceResult,
+        SuccessfulInferenceResult,
+    )
 
 
 PROPERTIES = {"builtins.property", "abc.abstractproperty"}

astroid/brain/brain_argparse.py

@@ -4,12 +4,16 @@
 
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+
 from astroid import arguments, nodes
-from astroid.context import InferenceContext
 from astroid.exceptions import UseInferenceDefault
 from astroid.inference_tip import inference_tip
 from astroid.manager import AstroidManager
 
+if TYPE_CHECKING:
+    from astroid.context import InferenceContext
+
 
 def infer_namespace(node, context: InferenceContext | None = None):
     callsite = arguments.CallSite.from_call(node, context=context)

astroid/brain/brain_attrs.py

@@ -8,11 +8,18 @@
 Without this hook pylint reports unsupported-assignment-operation
 for attrs classes
 """
-from astroid.manager import AstroidManager
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.nodes.node_classes import AnnAssign, Assign, AssignName, Call, Unknown
 from astroid.nodes.scoped_nodes import ClassDef
 from astroid.util import safe_infer
 
+if TYPE_CHECKING:
+    from astroid.manager import AstroidManager
+
 ATTRIB_NAMES = frozenset(
     (
         "attr.Factory",

astroid/brain/brain_boto3.py

@@ -4,10 +4,17 @@
 
 """Astroid hooks for understanding ``boto3.ServiceRequest()``."""
 
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.builder import extract_node
-from astroid.manager import AstroidManager
 from astroid.nodes.scoped_nodes import ClassDef
 
+if TYPE_CHECKING:
+    from astroid.manager import AstroidManager
+
+
 BOTO_SERVICE_FACTORY_QUALIFIED_NAME = "boto3.resources.base.ServiceResource"
 
 
@@ -28,5 +35,7 @@ def _looks_like_boto3_service_request(node: ClassDef) -> bool:
 
 def register(manager: AstroidManager) -> None:
     manager.register_transform(
-        ClassDef, service_request_transform, _looks_like_boto3_service_request
+        ClassDef,
+        service_request_transform,
+        _looks_like_boto3_service_request,
     )

astroid/brain/brain_builtin_inference.py

@@ -7,13 +7,12 @@
 from __future__ import annotations
 
 import itertools
-from collections.abc import Callable, Iterable, Iterator
+from collections.abc import Iterator
 from functools import partial
-from typing import TYPE_CHECKING, Any, NoReturn, Union, cast
+from typing import TYPE_CHECKING, Union, cast
 
 from astroid import arguments, helpers, nodes, objects, util
 from astroid.builder import AstroidBuilder
-from astroid.context import InferenceContext
 from astroid.exceptions import (
     AstroidTypeError,
     AttributeInferenceError,
@@ -25,14 +24,18 @@
 from astroid.manager import AstroidManager
 from astroid.nodes import scoped_nodes
 from astroid.raw_building import build_module
-from astroid.typing import (
-    ConstFactoryResult,
-    InferenceResult,
-    SuccessfulInferenceResult,
-)
 
 if TYPE_CHECKING:
+    from collections.abc import Callable, Iterable
+    from typing import Any, NoReturn
+
     from astroid.bases import Instance
+    from astroid.context import InferenceContext
+    from astroid.typing import (
+        ConstFactoryResult,
+        InferenceResult,
+        SuccessfulInferenceResult,
+    )
 
 ContainerObjects = Union[
     objects.FrozenSet,

astroid/brain/brain_collections.py

@@ -4,13 +4,17 @@
 
 from __future__ import annotations
 
+from typing import TYPE_CHECKING
+
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import extract_node, parse
-from astroid.context import InferenceContext
 from astroid.exceptions import AttributeInferenceError
-from astroid.manager import AstroidManager
 from astroid.nodes.scoped_nodes import ClassDef
 
+if TYPE_CHECKING:
+    from astroid.context import InferenceContext
+    from astroid.manager import AstroidManager
+
 
 def _collections_transform():
     return parse(

astroid/brain/brain_crypt.py

@@ -2,10 +2,16 @@
 # For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
-from astroid import nodes
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import parse
-from astroid.manager import AstroidManager
+
+if TYPE_CHECKING:
+    from astroid import nodes
+    from astroid.manager import AstroidManager
 
 
 def _re_transform() -> nodes.Module:

astroid/brain/brain_ctypes.py

@@ -10,12 +10,17 @@
 Thus astroid doesn't know that the value member is a builtin type
 among float, int, bytes or str.
 """
+from __future__ import annotations
+
 import sys
+from typing import TYPE_CHECKING
 
-from astroid import nodes
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import parse
-from astroid.manager import AstroidManager
+
+if TYPE_CHECKING:
+    from astroid import nodes
+    from astroid.manager import AstroidManager
 
 
 def enrich_ctypes_redefined_types() -> nodes.Module:

astroid/brain/brain_curses.py

@@ -2,10 +2,16 @@
 # For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
-from astroid import nodes
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import parse
-from astroid.manager import AstroidManager
+
+if TYPE_CHECKING:
+    from astroid import nodes
+    from astroid.manager import AstroidManager
 
 
 def _curses_transform() -> nodes.Module:

astroid/brain/brain_dataclasses.py

@@ -14,23 +14,29 @@
 
 from __future__ import annotations
 
-from collections.abc import Iterator
-from typing import Literal, Union
+from typing import TYPE_CHECKING
 
-from astroid import bases, context, nodes
+from astroid import bases, nodes
 from astroid.builder import parse
 from astroid.const import PY310_PLUS, PY313_PLUS
 from astroid.exceptions import AstroidSyntaxError, InferenceError, UseInferenceDefault
 from astroid.inference_tip import inference_tip
 from astroid.manager import AstroidManager
-from astroid.typing import InferenceResult
 from astroid.util import Uninferable, UninferableBase, safe_infer
 
-_FieldDefaultReturn = Union[
-    None,
-    tuple[Literal["default"], nodes.NodeNG],
-    tuple[Literal["default_factory"], nodes.Call],
-]
+if TYPE_CHECKING:
+    from collections.abc import Iterator
+    from typing import Literal, Union
+
+    from astroid import context
+    from astroid.typing import InferenceResult
+
+    _FieldDefaultReturn = Union[
+        None,
+        tuple[Literal["default"], nodes.NodeNG],
+        tuple[Literal["default_factory"], nodes.Call],
+    ]
+
 
 DATACLASSES_DECORATORS = frozenset(("dataclass",))
 FIELD_NAME = "field"

astroid/brain/brain_datetime.py

@@ -2,12 +2,18 @@
 # For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
-from astroid import nodes
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import AstroidBuilder
 from astroid.const import PY312_PLUS
 from astroid.manager import AstroidManager
 
+if TYPE_CHECKING:
+    from astroid import nodes
+
 
 def datetime_transform() -> nodes.Module:
     """The datetime module was C-accelerated in Python 3.12, so use the

astroid/brain/brain_dateutil.py

@@ -4,13 +4,18 @@
 
 """Astroid hooks for dateutil."""
 
+from __future__ import annotations
+
 import textwrap
+from typing import TYPE_CHECKING
 
-from astroid import nodes
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import AstroidBuilder
 from astroid.manager import AstroidManager
 
+if TYPE_CHECKING:
+    from astroid import nodes
+
 
 def dateutil_transform() -> nodes.Module:
     return AstroidBuilder(AstroidManager()).string_build(

astroid/brain/brain_functools.py

@@ -6,22 +6,28 @@
 
 from __future__ import annotations
 
-from collections.abc import Iterator
 from functools import partial
 from itertools import chain
+from typing import TYPE_CHECKING
 
-from astroid import BoundMethod, arguments, nodes, objects
+from astroid import BoundMethod, arguments, objects
 from astroid.builder import extract_node
-from astroid.context import InferenceContext
 from astroid.exceptions import InferenceError, UseInferenceDefault
 from astroid.inference_tip import inference_tip
 from astroid.interpreter import objectmodel
-from astroid.manager import AstroidManager
 from astroid.nodes.node_classes import AssignName, Attribute, Call, Name
 from astroid.nodes.scoped_nodes import FunctionDef
-from astroid.typing import InferenceResult, SuccessfulInferenceResult
 from astroid.util import UninferableBase, safe_infer
 
+if TYPE_CHECKING:
+    from collections.abc import Iterator
+
+    from astroid import nodes
+    from astroid.context import InferenceContext
+    from astroid.manager import AstroidManager
+    from astroid.typing import InferenceResult, SuccessfulInferenceResult
+
+
 LRU_CACHE = "functools.lru_cache"
 
 

astroid/brain/brain_hashlib.py

@@ -2,10 +2,16 @@
 # For details: https://github.com/pylint-dev/astroid/blob/main/LICENSE
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
-from astroid import nodes
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import parse
-from astroid.manager import AstroidManager
+
+if TYPE_CHECKING:
+    from astroid import nodes
+    from astroid.manager import AstroidManager
 
 
 def _hashlib_transform() -> nodes.Module:

astroid/brain/brain_http.py

@@ -3,13 +3,18 @@
 # Copyright (c) https://github.com/pylint-dev/astroid/blob/main/CONTRIBUTORS.txt
 
 """Astroid brain hints for some of the `http` module."""
+from __future__ import annotations
+
 import textwrap
+from typing import TYPE_CHECKING
 
-from astroid import nodes
 from astroid.brain.helpers import register_module_extender
 from astroid.builder import AstroidBuilder
 from astroid.manager import AstroidManager
 
+if TYPE_CHECKING:
+    from astroid import nodes
+
 
 def _http_transform() -> nodes.Module:
     code = textwrap.dedent(